Discussions

Hi there,

First of all sorry if this has been answered, I've checked posts regarding issues arming the copter but I cannot find a solution.

I‘m having troubles with to arm my copter.I'm using qgroundcontrol which I've updated to the latest release  and I've flashed the Pixhawk with the latest update.  I've done all the calibrations. I do the test at the same room. 

The copter can be armed with radio while the USB is plugged in no matter whether qgroundcontrol is runnning or not .

However, there 's something wrong  when I try to arm without USB. The red light will flash 3 times and the sound just likes "mi do mi do mi do". (Safe button pressed)

Is it ok if I did't use GPS module because I just want to use it in room ? IF that is the problem , how can I

work it out？

Any ideas?

Much appreciated :)